Hello.
I'm currently building Xen based system on IMX8QM board.
In my configuration I have gpu core 1 in Dom0 which includes most of the hardware, and passed-through gpu core 0 to the Guest Domain (DomU). GPU cores can be split between the guests, according to the Section 8.5 of i.MX_Graphics_User's_Guide_Linux
Everything works fine on the first boot. But after rebooting DomU I see the following error on Galcore initialization:
[ 1.647193] **************************
[ 1.647210] *** GPU STATE DUMP ***
[ 1.647225] **************************
[ 1.647238] axi = 0x0000025F
[ 1.647252] idle = 0x7FFFFFFE
[ 1.647265] FE not idle
[ 1.647276] DMA appears to be stuck at this address:
[ 1.647294] 0x003E47E0 |
Some investigation gave me that reset_gpu function does nothing because there is no registered reset control. Not sure if there is the cause.
I'm using commit a68e31b63f864ff71cd4adb40fbc9e1edc75c250 from linux-imx
Bootlog is attached. It includes first successful start and unsuccessful restart.
Also attaching kernel config.
Maybe somebody have met this issue before.
